Doorstop



Nov. 11, 1952 w. DESY ljooRsToP Filed Sept. 30, 1950 INVENTOR. wuLFRno DESY.

AT1-QR NEY Patented Nov. 11,A 1952 j "UNITED STATES PATENT ,OFFICE Wilfrid Desy, Detroit, Mich. Application September 30, 1950, Serial No. 187,795

This invention relates to a screen door stopper, and more particularly to a stopper construction adapted for mounting within a door jamb and which is cooperable with ga portion of a closing screen door to prevent accidental or noisy closing thereof. v

It is the object of the present invention to provide 'a very simplied screen door stopper which incorporates mechanism for absorbing the force of the closing door, to cushion the same and which will permit the noiseless closing thereof.

This and other objects Will be seen in the following specication and claims in conjunction with the appended drawing in which- Fig. 1 is a side elevational view'of the screen door stopper as mounted upon, a door jamb and showing the stopper engaging a closing screen door and also illustrating, in dotted lines, the relation of the screen door and stopper arm when the screen door is fully closed.

' Fig. 2 is similar to Fig. 1 but illustrates the stopper arm projected longitudinally'inward under the closing action of the screen door and locked against upward pivotal movement; and

Fig. 3 is asection on line 3-3 of Fig. 1.

It will be understood that the above drawing illustrates merely a preferred embodiment of the invention and that other embodiments are contemplated within the scope of the claims hereafter set out.

Referring to Fig. 1 the screen door stopper includes the rectangular flat plate "3 secured in an upright position by the screws I4 to an interior side wall of the door jamb II and in association with the screen door I2 hinged relative to said door j amb.

.3 Claims. (Cl. 16-86) towards each other from the side wall portions 23 withtheirinnerlongitudinal edges spaced as shown in Fig. 2 and extending'below the head Iiiv of rivet I5. The iiange 25 is arranged centrally of arm II and is turned outwardly therefrom as shown in the drawings Vand as shown particularlyV in Fig. 3 in cooperation with the opposed top wall portions 24. The elongated bolt 26 is mounted upon the screen stopper arm. Il below the top wall portions 24 with its head bearing. against rivet I'5 and with its opposite threaded end extending slidably through a transverse opening in ange 25. 'I'he nut 2'I is threaded upon the outer end of the bolt 26 and, in the inoperative position shown in Figs. 1 and 3, engages ange 25.

Low tension coiled spring 28 is positioned around the bolt 26 with one end engaging the inner surface of ange 25 and with its opposite end engaging the under surface of the head of bolt 26.

VSpaced stops 2S and 30 project normally outward from plate I3 Awith stop 29 engaging arm l 1 to limit its downward positioning as shown in Figs. 1 and 2. Stopv30 limits the upward pivotal movement of Vthe stopper arm I'I as shown by the dotted line illustration in Fig. 1.

There-is also provided at the lower corner of plate I3 an upright stopper 3| which in the inoperative position of the door stop in Fig. 1 is clear of the rearward projection 32 of said arm The rivet I5 is joined to plate I3 and projects l outwardly therefrom and has a headedvportion I6 at its outer end. Elongated stopper arm I'I is pivotally mounted upon the rivet I5 and has a central rearwardly positioned elongated slot I8 which receives said rivet to permit longitudinal inward movement of arm I'I with respect to said rivet from-the position shown in Fig. 1 to the position shown in Fig. 2.

Elcngated rivet or shaft I9 is joined to and projects normally outward from the outer end of arm I1 and carries thereon the rotatable brass eyelet 2| and the soft rubber or resilient yielding wheel 20 which is adapted to engage the frame of the screen door I2.

The screen door stopper arm includes the for- '5""5 wardly arranged outturned reinforcing spaced side wall portions 22 which merge rearwardly into the rear side wall portions 23 of increased height as shown in Fig. 3. The stopper arm includes the top wall portions 24 which are bent inwardly ut which, inFig. 2, is in the path of pivotal movement of said projection, with the guide ledge 33 thereof operatively bearing against stopper 3|.

' In operation, as shown in Fig. 1 with the screen door fully'I closed, the arm I'I assumes the dotted line position illustrated. Upon opening of screen door I2, as shown in Fig. 1, the arm I1 piovtally drops 'as shown'resting upon the stop 29 where it stays until the screen door swings closed in a K conventional manner.

Without the present stopper construction, the screen door would noisily close against the door jamb II which is obviously objectionable. However by the present construction the resilient rubber wheel 20 will engage the closing screen door as shown in Fig. 1. The inward thrust of the d-oor initially causes a partial collapsing of rubber wheel 20, which is preferably of soft rubber, and thereafter the thrust of the screen door projects the arm I 'I rearwardly in a straight line to the position shown in Fig. 2.

This compresses spring 28 and at the same time the threaded end of the bolt 26 projects outwardly from the flange 25 as illustrated. j

It is appl'arent from Fig. 2 that the extension 32 at the rear end of arm I'I and its guide ledge 33 bear against stopper 3l preventing arm l1 from pivoting upwardly under the action of the screen door in the iirst instance so that said arm acts as a stiifening rod to stop the door without noise.

As the door slightly bounces back under the action of low tension spring 28 to the position shown Fig. l the door will have come to a dead stop and is now free to close to the dotted line position shown in Fig. 1 and this will project the stopper to the dotted line position shown. This is clear inasmuch as the projection 32 is now free of stopper 3 I.

Having described my invention referenceshould now be had to the claims which follow fonde-.- termining the scope thereof.

I claim:

l. A screen door stopper comprising an upright plate secured within a door jamb, a headed pin projecting normally of said fplate and secured thereon, an arm pivo-tally mounted at its yinner end upon said pin and adaptedto extend parallel tofsaid-plateand outwardly of :Said iamb. spaced `rst stops projecting normally from 'said plate uponppposite sides of said arm and lyingn .its path ofpivotal movement and alternately engageable by said-arm tolim-it pivotal movement thereof, one of said stops; underlying and normally suppor ting said arm whereby upward pivotal movement thereof will be limited by another ofsaid stops, a soft rubber wheel -jourlnaledupon theouter end of said arm andiengageable with a closing screen door to absorb the thrust thereof and permit the said door to quietly closepivoting said arm upwardly within the door jamb, said arm having a central elongated slot adjacent its inner Vend to receive said pin to permit an'initial longitudinal inward non-pivotal movement of said arm upon initial engagement of said Awheel `with said screen door, a coiled spring supported .upon said arm and vinterposed between :said pin and said arm Ynormally resisting/said initial longitudinalinward movement of said yarm and adapted to rreturn the -arm to its initial position asthe screen `door comes to a dead stop, and -a stopper projecting normally from -said plate rearwardly of said pin and arranged normally in spaced relation to the inner end of said armbut-in its path of pivotal Vmovement when saidarmismoved longitudinally 'inward whereby upon-saidinitial longitudinal inward movementof saidarmsaid stopper engages its-inner end preventing pivotal movementethereof and said spring -will return said armto its initial position for-pivotal movement upwardly upon subsequent closing movement of said door.

2. A screen door stopper comprising 4an upright plate secured within a door jjamb, a headed pin projecting normally of said plate and secured thereto. an arm pivotally mounted at `its inner end upon said pin and adapted to extend parallel to said plate and outwardly of'said jamlo, spa ced rst stops projecting normally from said plate upon opposite sidesoi said arm and lying in its path of pivotal movement and alternately engageable by Asaid arm to limit pivotal move-V ment thereof, .one of said stops underlying and normally supporting said arm whereby vupward pivotal movement thereof .will .be limited kby another of said stops, a soft rubber Awheel journaled upon the outer endof said arm'and engageable with a closing screen door -to absorb the thrust thereof and permit thesaid door to quietly close, pivoting said .arm upwardly .within .the door 4 jamb, said arm having a central elongated slot adjacent its inner end to receive said pin to permit an initial longitudinal inward non-pivotal movement of said arm upon initial engagement with said screen door, a coiled spring supported upon said arm and interposed between said pin and said arm normally resisting said initial longitudinal inward movement of said arm and adapted to return the arm to its initial position as the door comes to a dead stop, an extension of reduced width projecting axially from the rear `ende of said arm, and a stopper projecting normally in spaced relation to said extension but in its pathvof pivotal movement when said arm is moved longitudinally inward whereby upon initial longitudinal inward movement of said arm said stopper engages said extension preventing upward pivotal movement of said arm and said spring will return said arm to its initial position for Vpivotal movement upwardly .upon subsequent closingixnovement of said door. Y

3. A screen door stopper comprising an upright plate secured within a door jamb, a headed pin projecting normally of said plate and secured theretofan arm pivotally mounted at its inner endfuponsai-d pin and adapted'toextend parallel to -said plate and outwardlyvof said jamb, spaced stops projecting normally from said -plate upon opposite sides of said arm and inits pathof pivotal movement and alternately engageable Aby said arm to limit vpivotalmovementthereo#one of said stops underlying and normallysupporting said arm whereby upward pivotal movement thereof -will be limited by another of said stops, a soft rub-ber wheel journaled -upon vthe outer end of said arm andengageable with a closing screen door to absorb the thrust thereof and per-- mit the said door to quietly close, pivoting hSaid arm upwardly within the -door jamb. said arm havingjea centralelongatedfslot adjacent itsinner end to `receive said pin to permit an initial longitudinal inward non-pivotal movement of said arm -upon initial engagement with said screen door, a bolt mounted uponand arranged parallelftosaid arm with vits head-bearing :against said 4pin and with its ropposite end slidably engaged -by -saidarm, a coiled spring mounted upon said bolt with one end bearing-against the headoi said boltvand with the opposite end 'bearingnagainst said Yarm normally resisting said inii tial `longitudinal inward movement of said arm and Yadapted to return the arm toits initial position as the screen door comes to a -dead stop,V

and a stopper projecting normally from-said plate rearwardly of said pin and arranged normally-in spacedfrelation to the innerer-id of said'arm-but in its'path of pivotal movement when Said arm is finovedilongitudinally inwardly whereby upon said initial-longitudinal inward movement of `said arm sai-d stopper .engages fits inner Aend vpreventing pivotal movement thereof and said spring will returnsaid arm to its-initial positionfor lpivotal movement upwardly upon subsequent closing movement-of said door.

REFERENCES CITED The following references are of record in .the 

